This MAHLE coolant temperature sensor (part code TSE 26) is designed to accurately measure the temperature of your engine's coolant. Proper monitoring of coolant temperature is crucial for maintaining optimal engine performance, preventing overheating, and ensuring the longevity of your cooling system components. The sensor provides vital data to the engine control unit (ECU) for precise fuel management and fan control. MAHLE is a trusted name in engine technology, delivering reliable and high-quality components.